Pin-retainer.



Patented Oct. 28, I902.

c. :4. BROWN. Pm RETAINER. Apjflication filed 1m. V31, 1902.

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W I'TNESSES Patented Oct. 28, I902;

Wm Um m BE "8 l CF 2 1, 2 7 m N (Applxcatipn filed Mar. 31, 1902.)

2 Shasta-Sheet 2.

{No Model.)

lNVEN-TORz WITNESS 1 ml Q3,

UNITED STATES PATENT OFFICE.

CHARLES N. BROWN, OF WALTHAM, MASSACHUSETTS, ASSIGNOR TU JOHN A. ABEL AND EDWARD C. ABEL, OF BROOKLYN, NEW YORK.

PIN-RETAINER.

SPECIFICATION forming part of Letters Patent No. 712,252, dated October 28, 1902. Application filed March 31, 1902. Serial No. 100,702. (No model.)

To all whom it may concern.-

Be it known that 1, CHARLES N. BRowN, a citizen of the United States, residing at Waltham, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Pin-Retainers, of which the following is a specification.

My invention aimsto provide an improvement in pin-retainers in the nature of an IO attachment for preventing such pins being pulled out, being especially useful in connection with scarf-pins and the like.

With this end in View the invention provides a retainer or holder adapted for attachment to the shank of the pin in position to prevent its being withdrawn and which retainer has certain advantages over retainers previously in use, as described in detail hereinafter. The accompanying drawings illustrate an embodiment of the invention, in which-- Figure 1 is an elevation of a pin with my attachment applied thereto. Fig. 2 is a section through the attachment on a much exaggerated scale. Fig. 3 is a view of the slide separated from the pin. Figs. 4., 5, 6, and 8 are side elevations of other forms of the invention. Fig. 7 is a view at right angles to Fig. 6. 3o Myimproved device comprises a slide adapted to be moved up and down on the shank of a pin and means for wedgingthe same at any point. The slide is flat, and both the shank of the pin and the wedging device, which is 3 5 preferably a screw, pass edgewise therethrough. This construction makes it easy to hold the slide between the thumb and forefinger, so as to guide it on to the shank of the pin and at the same time to hold and manip-' 4o ulate the screw with the same thumb and finger. This feature is of importance because of the inability to see the pin when attaching the retainer and because of the necessity of holding the shank steady with one hand, leaving but one hand to first unscrew the retainer if necessary to adapt it to the size of the shank, then guide it over the point of the shank, and then screw it down on the shank. Preferably the slide bears on the pin at two separated points, the slide carrying a screw adapted to bear against the shank of the pin at a point intermediate the two bearing-points of the slide. The slide is preferably in the form of a ring through which the pin passes substantially diametrically. The inner end of the screw is'thus provided with a considerable free space in which to operate and has an enlarged inner end, so that it cannot be entirely unscrewed from the ring, and thus be lost. It is understood that the parts are quite small and that by connecting them inseparably in this way the danger of losing either of them is much reduced. The construction provided is also extremely simple, and it is practically impossible for it to get out of order. No special parts are necessary, the ring and screw being common stock parts of manufacturers supplies, so that the device is extremely cheap. There is no perceptible marring of the shank, because the only fric- 7o tional movement in clamping the retainer is at the end of the screw.

Referring to the drawings, A indicates a slide, which is shown in Figs. 1, 2, and 3 in the form of a circular ring, through which the shank B of the pin passes diametrically. The screw 0 is screwed through the edge of the ring substantially at right angles to the shank B and serves to fix the ring at any point on the shank to which the latter is slid. The slide A is of such size as to prevent the pin being Withdrawn, either accidentally or by design,without first releasing the slide by unscrewing the screw 0. By using a slide of the shape shown the grip of the device on the shank is made quite strong, the slide bearing on the shank at two separated points, as D and E, and the screw bearing against the shank at an intermediate point, as F, so as to engage the shank not only with a frico tional hold like that of the ordinary set-screw, but with a more secure hold, due to the clasticity of the portion of the shank between the portions D and E and the slight bend of the latter between these portions. This bend 9 5 need not, of course, be as great as that shown in the drawings, being exaggerated there for the sake of clearness. The ring-shaped slide which I use provides also a space G between the shank of the screw where it passes through the slide and the end of the screw, which permits of the forming of an enlarged end H on the screw, so that the latter cannot be unscrewed entirely out of the slide.

Fig. 3 shows the slide removed from the pin and the screw 0 withdrawn as far as possible. The screw may be provided with a knurled head J for turning.

Though I have described with great particularity of detail a device embodying my invention, yet it is to be understood that the invention is not limited to the particular device disclosed. Various modifications in the details and in the combinations of parts may be made by those skilled in the art without departure from the invention. For example, the wedging of the shank of the pin in the slide may be effected by springing a point of the shank out of line with its bearing in the slide, for which purpose it is only essential that the slide should bear at one point on the pin and that a screw or other pressure device carried by the slide should bear against the shank at a point outside of the bearingof the slide, as above or below the same, so as to wedge or spring the shank firmly in the slide.

Figs. 4 to 8 show several different forms which may be given to the slide. Figs. 4 and 5 differ from the construction shown in Figs. 1 to 3 in the shape of the ring, the same being shown in Fig. 4 as a rectangular ring A and in Fig.5 as a subtantiallyelliptical ring A It is not at all essential, however, that the slide shall be in the form of a complete ring, the slide A of Fig. 6 being merely in the form of an arch between two bearing-points E D and carrying a screw-pressure device 0 at an intermediate point. The head of the screw may of course be of any desired outlinesuch, for example, as the star shape shown at J in Fig. 7.

Probably the simplest form of my invention is that shown in Fig. 8, in which the slide A has but a single bearing-point D and has an arm through which the pressure device or screw 0 works, the latter bearing on the shank of the pin at a point F below the bearingpoint D. The shank is thus sprung out of line, as illustrated, to an exaggerated degree, and the slide is firmly wedged thereon.

What I claim is- 1. A pin-retainer comprising in combination a fiat slide having a pair of apertures in line with but separated from each other and passing edgewise therethrough to receive the shank of a pin, and a screw screwing edgewise through said slide and adapted to bear on such shank at a point intermediate of the points at which said shank passes through said slide so as to wedge said slide firmly on said shank.

2. A pin-retainer comprising in combination a flat slide having a pair of apertures in line with but separated from each other and passing ed gewise therethrough to receive the shank of a pin, and a screw screwing edgewise through said slide and adapted to bear on said shank at a point intermediate of the points at which said shank passes through said slide so as to wedge said slide firmly on said shank, said slide being shaped to form a space G and said screw having an enlarged inner end H within said space.

3. A pin-retainer comprising in combination a flat ring A having a pair of opposite apertures at D and E passing edgewise through said ring to receive the shank of a pin, a screw 0 screwing edgewise through said ring and adapted to bear on said shank at a point F intermediate of the points D and E so as to wedge said slide firmly on said ring, said ring having an open space G and said screw being provided with an enlarged inner end H in said space.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

CHARLES N. BROWN.

W'itnesses:

JOHN A. ABEL, JOSHUA Lovnrr. 

